130 lines
4.8 KiB
Erlang
130 lines
4.8 KiB
Erlang
-module(handler_booking_by_id).
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-include("records.hrl").
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-export([init/2]).
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init(Req, Opts) ->
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handle(Req, Opts).
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handle(Req, _Opts) ->
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case cowboy_req:method(Req) of
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<<"GET">> -> get_booking(Req);
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<<"PUT">> -> update_booking(Req);
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<<"DELETE">> -> cancel_booking(Req);
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_ -> send_error(Req, 405, <<"Method not allowed">>)
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end.
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%% GET /v1/bookings/:id - получение бронирования
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get_booking(Req) ->
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case handler_auth:authenticate(Req) of
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{ok, UserId, Req1} ->
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BookingId = cowboy_req:binding(id, Req1),
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case logic_booking:get_booking(UserId, BookingId) of
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{ok, Booking} ->
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Response = booking_to_json(Booking),
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send_json(Req1, 200, Response);
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{error, access_denied} ->
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send_error(Req1, 403, <<"Access denied">>);
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{error, not_found} ->
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send_error(Req1, 404, <<"Booking not found">>);
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{error, _} ->
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send_error(Req1, 500, <<"Internal server error">>)
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end;
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{error, Code, Message, Req1} ->
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send_error(Req1, Code, Message)
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end.
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%% PUT /v1/bookings/:id - подтверждение/отклонение бронирования (владельцем)
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update_booking(Req) ->
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case handler_auth:authenticate(Req) of
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{ok, UserId, Req1} ->
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BookingId = cowboy_req:binding(id, Req1),
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{ok, Body, Req2} = cowboy_req:read_body(Req1),
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try jsx:decode(Body, [return_maps]) of
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Decoded when is_map(Decoded) ->
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case maps:get(<<"action">>, Decoded, undefined) of
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<<"confirm">> ->
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case logic_booking:confirm_booking(UserId, BookingId, confirm) of
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{ok, Booking} ->
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Response = booking_to_json(Booking),
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send_json(Req2, 200, Response);
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{error, access_denied} ->
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send_error(Req2, 403, <<"Access denied">>);
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{error, not_found} ->
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send_error(Req2, 404, <<"Booking not found">>);
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{error, _} ->
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send_error(Req2, 500, <<"Internal server error">>)
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end;
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<<"decline">> ->
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case logic_booking:confirm_booking(UserId, BookingId, decline) of
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{ok, Booking} ->
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Response = booking_to_json(Booking),
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send_json(Req2, 200, Response);
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{error, access_denied} ->
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send_error(Req2, 403, <<"Access denied">>);
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{error, not_found} ->
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send_error(Req2, 404, <<"Booking not found">>);
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{error, _} ->
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send_error(Req2, 500, <<"Internal server error">>)
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end;
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_ ->
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send_error(Req2, 400, <<"Missing or invalid 'action' field. Use 'confirm' or 'decline'">>)
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end;
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_ ->
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send_error(Req2, 400, <<"Invalid JSON">>)
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catch
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_:_ ->
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send_error(Req2, 400, <<"Invalid JSON format">>)
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end;
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{error, Code, Message, Req1} ->
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send_error(Req1, Code, Message)
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end.
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%% DELETE /v1/bookings/:id - отмена бронирования (участником)
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cancel_booking(Req) ->
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case handler_auth:authenticate(Req) of
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{ok, UserId, Req1} ->
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BookingId = cowboy_req:binding(id, Req1),
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case logic_booking:cancel_booking(UserId, BookingId) of
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{ok, Booking} ->
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Response = booking_to_json(Booking),
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send_json(Req1, 200, Response);
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{error, access_denied} ->
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send_error(Req1, 403, <<"Access denied">>);
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{error, not_found} ->
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send_error(Req1, 404, <<"Booking not found">>);
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{error, _} ->
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send_error(Req1, 500, <<"Internal server error">>)
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end;
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{error, Code, Message, Req1} ->
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send_error(Req1, Code, Message)
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end.
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%% Вспомогательные функции
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booking_to_json(Booking) ->
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#{
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id => Booking#booking.id,
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event_id => Booking#booking.event_id,
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user_id => Booking#booking.user_id,
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status => Booking#booking.status,
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confirmed_at => case Booking#booking.confirmed_at of
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undefined -> null;
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Dt -> datetime_to_iso8601(Dt)
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end,
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created_at => datetime_to_iso8601(Booking#booking.created_at),
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updated_at => datetime_to_iso8601(Booking#booking.updated_at)
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}.
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datetime_to_iso8601({{Year, Month, Day}, {Hour, Minute, Second}}) ->
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iolist_to_binary(io_lib:format("~4..0B-~2..0B-~2..0BT~2..0B:~2..0B:~2..0BZ",
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[Year, Month, Day, Hour, Minute, Second])).
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send_json(Req, Status, Data) ->
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Body = jsx:encode(Data),
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cowboy_req:reply(Status, #{<<"content-type">> => <<"application/json">>}, Body, Req),
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{ok, Body, []}.
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send_error(Req, Status, Message) ->
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Body = jsx:encode(#{error => Message}),
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cowboy_req:reply(Status, #{<<"content-type">> => <<"application/json">>}, Body, Req),
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{ok, Body, []}. |